my ECM is the pathfinder version. it has the grey plastic cover that protects the toggle switch.

it also has the window like deerhurts. when its powered on, it flashes 1, 2, 3, 4 then 5 and starts over. you have to wait until it flashes three, then flip the switch before it starts to flash 4 times. then it will start throwing codes via the red and green lights.